2-Mercapto Pyrazine (CAS # 38521-06-1)

Taw qhia

2-Mercaptopyrazine yog ib qho organic compound nrog cov tshuaj formula C4H4N2S. Nws yog ib tug dawb crystalline khoom nrog ib tug pungent tsw. Cov hauv qab no yog cov lus piav qhia txog qhov xwm txheej, kev siv, kev npaj thiab kev nyab xeeb ntawm 2-Mercaptopyrazine:

Xwm:

-Zoo: Dawb crystalline khoom

Molecular Luj: 112.16g / mol

- melting point: 80-82 ℃

-Boiling point: txog 260 ℃ (decomposition)

-Soluble: Soluble hauv acid, alkali, ethanol thiab ether, me ntsis soluble hauv dej.

Siv:

- 2-Mercaptopyrazine tuaj yeem siv los ua ib qho tseem ceeb nruab nrab ntawm cov organic synthesis thiab tuaj yeem ua lub luag haujlwm tseem ceeb hauv kev sib xyaw tshuaj thiab tshuaj tua kab.

-Nws tuaj yeem siv los npaj pyrazine dyes, tshuaj intermediates thiab kev sib koom ua ke.

Txoj Kev Npaj:

2-Mercaptopyrazine tuaj yeem ua ke:

1. Cov tshuaj tiv thaiv 2-bromopyrazine nrog sodium hydrogen sulfate hauv dej / ethanol muab 2-Mercaptopyrazine. Cov tshuaj tiv thaiv yog feem ntau xws li cov tshuaj tiv thaiv yog nplawm ntawm chav tsev kub.

2. 2-Mercaptopyrazine kuj tau los ntawm reacting 2-chloropyrazine nrog thiol nyob rau hauv alkaline tej yam kev mob.

Cov ntaub ntawv kev nyab xeeb:

- 2-Mercaptopyrazine yog ib qho tshuaj tiv thaiv kab mob uas yuav ua rau khaus khaus ntawm daim tawv nqaij, qhov muag lossis los ntawm kev nqus ntawm nws cov plua plav.

- Hnav cov khoom tiv thaiv tus kheej xws li hnab looj tes tiv thaiv tshuaj, tsom iav kev nyab xeeb thiab lub ntsej muag tiv thaiv thaum tuav 2-Mercaptopyrazine.

-Thaum siv cov tshuaj no, thov nco ntsoov ua haujlwm hauv qhov chaw muaj cua zoo kom tsis txhob nqus nws cov plua plav.

-Tsis txhob sib cuag nrog oxidants thiab muaj zog acids kom tsis txhob muaj kev phom sij txaus ntshai.

- Khaws 2-Mercaptopyrazine nyob rau hauv ib lub thawv airtight, kom deb ntawm tshav kub thiab hluav taws.